Research Stations on Colony that has a spaceport?

[RhesusPeanutButterCups]

I just finished the Rusan Technology Installation at my homeworld which has a Large Space Port over it. I tried to queue up a construction ship to make a research facility to take advantage of the bonus but the construction ship just wanders about a bit then I'm told that the ship finished it's mission. Is it not possible to build a research station on a colony that already has a space port?

EDIT: I failed to look at the Research Summary screen before posting this, I did not realize that the Research Wonders provided an empire-wide bonus to each category of research. I was under the impression that it provided a planet-based bonus that required a research facility.

[Bingeling]

As to the original question, yes it should be possible to build a research station on/around a planet with a spaceport.

[Fishers of Men]

You can build any research base at a planet you own with a space port by selecting the planet, then right clicking the mouse next to the chosen planet and selecting the type of base you wish to build from the menu. A construction ship is not needed for this location.

[Phuket]

Build all the research stations to your hearts content!

[NephilimNexus]

Alternative you can go to the planet's info screen, select the Construction Yard and pick a research base from the drop-down menu. That also gives you the advantage of seeing just how fast that particular planet can build things. You can also queue up multiple projects this way as well.